软质瓷：artificial porcelain
软字体：soft font
软座车：carriage with cushioned seats
软座阀：soft seated valve
锐调谐：sharp tuning
锐角的：acute-angled
锐孔圈：orifice,ring
瑞藏醛：rhizonaldehyde
瑞藏酸：rhizonic acid
瑞德灵：riddeline
瑞典纸：Swedish paper
瑞丰缎：rei feng brocade
瑞利比：Rayleigh ratio
瑞利区：Rayleigh region
瑞士松：cembra pine
瑞它明：retamine
瑞提阶：Rhaetic stage
瑞香酸：daphnetic acid
瑞香油：daphne oil
润拔剂：drawing compound
润版辊：dampening roller, damper, damping roller
润肠药：aperient
润发浆：bandoline
润滑槽：lubricating groove
润滑垫：lubricating pad
润滑法：lubricating method
润滑环：drip ring
润滑力：lubricating capacity
润滑期：lubrication interval
润滑漆：lubricating varnish
润滑器：lubricating couple
润滑枪：lubricating gun；lubricant gun
润滑蕊：lubricating wick
润滑皂：soap lubricant
润滑值：lubricating value
润模剂：mo(u)ld lubricant
润磨油：grinding oil
润湿布：damping cloth
润湿槽：wetting-outbox
润湿度：degree of wetness
润湿辊：dampener
润湿水：wet water
润手膏：hand jelly
润燥剂：dryness-moistening medicinal
若虫龄：nymphal instar
弱场法：weak-field method
弱地震：weak shock
弱点法：weak,point method
弱点火：weak ignition
弱电网：low power system
软字体：soft font
软座车：carriage with cushioned seats
软座阀：soft seated valve
锐调谐：sharp tuning
锐角的：acute-angled
锐孔圈：orifice,ring
瑞藏醛：rhizonaldehyde
瑞藏酸：rhizonic acid
瑞德灵：riddeline
瑞典纸：Swedish paper
瑞丰缎：rei feng brocade
瑞利比：Rayleigh ratio
瑞利区：Rayleigh region
瑞士松：cembra pine
瑞它明：retamine
瑞提阶：Rhaetic stage
瑞香酸：daphnetic acid
瑞香油：daphne oil
润拔剂：drawing compound
润版辊：dampening roller, damper, damping roller
润肠药：aperient
润发浆：bandoline
润滑槽：lubricating groove
润滑垫：lubricating pad
润滑法：lubricating method
润滑环：drip ring
润滑力：lubricating capacity
润滑期：lubrication interval
润滑漆：lubricating varnish
润滑器：lubricating couple
润滑枪：lubricating gun；lubricant gun
润滑蕊：lubricating wick
润滑皂：soap lubricant
润滑值：lubricating value
润模剂：mo(u)ld lubricant
润磨油：grinding oil
润湿布：damping cloth
润湿槽：wetting-outbox
润湿度：degree of wetness
润湿辊：dampener
润湿水：wet water
润手膏：hand jelly
润燥剂：dryness-moistening medicinal
若虫龄：nymphal instar
弱场法：weak-field method
弱地震：weak shock
弱点法：weak,point method
弱点火：weak ignition
弱电网：low power system